anonymous element

Hi;

 

How can I define anonymous elements (elements without names) in XML
schema?

 

What I would like to achieve is a schema in which the following
statements are true:

1.       An XML document based on the schema can contain any XML
element.

2.       All XML elements should have "id" and "name" attributes. 

 

In short something like this:

 

<xsd:schema targetNamespace="http://www.bla"
xmlns:xsd=http://www.w3.org/2001/XMLSchema>

    <!-- anonymous element  -->

    <xsd:complexType name="Anonymous.Type">

        <xsd:attribute name="id" type="xsd:string"/>

        <xsd:attribute name="name" type="xsd:string"/>

    </xsd:complexType>

 

     <xsd:element name="*" type=" Anonymous.Type"/>

</xsd:schema>

 

Assuming "*" indicates an "anonymous element", but such a thing doesn't
exist in Schema definition.

 

How do I achieve this?

 

Regards;

Ayalew